#include<stdio.h>
#include<netinet/in.h>
#include<arpa/inet.h>
  
int main(){
    struct sockaddr_in addr1;
    struct sockaddr_in addr2;
  
    addr1.sin_addr.s_addr = 0x00000000;
    addr2.sin_addr.s_addr = 0xffffffff;
    char *p1 = inet_ntoa(addr1.sin_addr);
    char *p2 = inet_ntoa(addr2.sin_addr);
    printf("p1 : %s, p2 : %s\n",p1,p2);
                                             
    return 0;
}